openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

sata_rcar: fix deferred probing 

The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing. Switch to propagating the
error code upstream, still checking/overriding IRQ0 as libata regards it
as "no IRQ" (thus polling) anyway...

Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Sergei Shtylyov 2018-11-24 21:14:16 +03:00 committed by Jens Axboe
parent 614c61a651
commit 9f83cfdb1a
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/ata/sata_rcar.c
View File

@ -891,7 +891,9 @@ static int sata_rcar_probe(struct platform_device *pdev)
int ret = 0;
irq = platform_get_irq(pdev, 0);
if (irq <= 0)
if (irq < 0)
return irq;
if (!irq)
return -EINVAL;
priv = devm_kzalloc(dev, sizeof(struct sata_rcar_priv), GFP_KERNEL);